In Weihai, no matter how many star-rated hotels have breakfast coupons for only one person, I wonder why only one person can have breakfast for free in a room for two people.

Because two people's rooms are usually relatives or lovers, or close friends,

So if one person eats breakfast in a hotel, another person can't eat out by himself, right?

Two people either eat in a hotel or eat out. Eating out is a waste of food. So one is free,

At one charge, the hotel took back the money sent out.